Heat Development and In-Situ Strength of Large Diameter Caissons Made with High-Strength Concreteby Ronald G. Burg, Construction Technology Lab Inc, United States,
Abstract: The test program essentially consisted of casting two prototype caissons using two different high-strength concretes, measuring internal caisson and adjacent soil temperatures, extracting concrete core samples at various test ages, and performing standard concrete control tests. Of particular interest was the relationship between the in-situ concrete strength as measured by cores and the concrete strength measured by standard 6 × 12-inch control specimens. Because the test program is currently underway all test results are not available, only the specifics of the test program are described.
Subject Headings: High-strength concrete | Caissons | Soil tests | Temperature measurement | Field tests | Strength of materials | Soil properties
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